Caster.



No. 632,774. Patented sept. l2, |899.

.1. w. BATEMAN.

SASTEB (Application led Apr. 12, 1899.)

(No Medel.)

NVENT? YY, ac'lnan ATTORNEY.

MZMV

UNITED STATES PATENT OFFICE.

JOIIN lV. BATEMAN, OF INDIANAPOLIS, INDIANA.

CASTER.

SPECIFICATION formingpart of Letters Patent No. 632,774, dated September12, 1899.-

Application filed April l2, 1899.

T0 all whom, t may concern:

Be it known that I, JOHN W. BATEMAN, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented a new and useful Ball-Bearing-Caster Socket, ot' which thefollowing is a specilication.

My invention relates to an improvement in ball-bearings for casters.

The object of my invention is to produce a ball-bearing socket which maybe secured to furniture and with which the usual form of casters may bemade to coperate,the arrangement being such that the caster may beremoved from the socket without disturbing the balls of the bearing.

The accompanying drawings illustrate my invention.

Figure l is a central vertical section with a caster in cooperatingposition. Fig. 2 is a similar section of the complete socket. Fig. 3 isa perspective view thereof.

In the drawings, 4 indicates a sleeve, to which is secured near thelower end a collar 5. The under face of collar 5 forms a bearing for aseries of balls 6, and said collar should preferably be immovablysecured to sleeve 4. Upon the lower end 7 of sleeve 4 is rotatablymounted a ball cup or collar S, which receives and supports balls 6. Oup8 is held on the sleeve bymeans of a retainingflange 9, formed on thelower end of said sleeve. The lower side of cup S may be provided with arib 10,which extends below ange 9, so that thetlange ll of a caster l2may bear upon and hold the cup instead of bearing upon the end of thesleeve 4. If desired, sleeve 4 may be formed with one or moreretaining-lips 13 of the usual form, which may engage the enlarged head14 of the shank l5 of caster l2 in the usual manner, so as to preventthe accidental displacement ofthe caster.

In the drawings I have shown llange ll of caster l2 of a form best ttedto cooperate with the ball-cup 8 5 but it Will be readily understoodthat any form of iange, so long as Serial No. 712,688. (No model.)

it engages cup S without bearing upon the end of sleeve 4, willcooperate with my peculiar form of socket. The construction shown inFigs. 2 and 3 therefore will, when applied to usual forms ofnon-ball-bearing casters., make successful ball-bearin g casters ofthem.

The operation is apparent. The complete socket,including the balls andbearings therefor, may be applied in the usual manner, sleeve 4beinginserted in the usual socket 1G and the upper face of collar 5sinking into the leg 17. The shank of caster l2 may then be insertedinto sleeve 4 or withdrawn therefrom without in any manner disturbingthe ball-bearing.

I claim as my inventionl. As an article of manufacture,aball-bearing-caster socket consisting of a sleeve adaptL ed to receive aremovable caster-shank, a pair of collars mounted on said sleeve, one ofsaid collars being rotatable upon the sleeve, and a series of balls orrollers retained between said collars.

2. As an article of manufacture,a ball-bearing-easter socket consistingof a sleeve adapted to receive a caster-shank, a collar secured to saidsleeve, a second collar rotatably mounted on said sleeve and having'aportion extending below the lower end of the sleeve, and a series ofballs or rollers retained between the collars.

3. As an article of manufacture,a ball-bearin g-caster socket consistingof a central sleeve or stern, a pair of collars mounted upon said stem,one of said collars being rotatable with relation to the other, and aseries of balls mounted between said collars, the arrangei ment beingsuch that one of said collars may be secured to the article to besupported and the other of said collars engaged by a detachable caster.

JOHN lV. BATEMAN.

Witnesses:

ARTHUR M. Hoon, FRANK A. FAHLE.

